[appengine-java] double makePersistent() calls needed to persist a JDO object update

[Patrizio Munzi]

Hi all, looks like the local datastore needs a call to the makePersistent() method every time an object is modified for make the changes persistent. For example the following method works only with the second makePersistent() method call; --------------------------------         PersistenceManager pm = PMF.get().getPersistenceManager();         User user = new User();               pm.makePersistent(user);                                       <--- first makePersistent() call         pm.close();         pm = PMF.get().getPersistenceManager();         Transaction tx = pm.currentTransaction();         for (int i = 0; i < txDatastoreNumRetries; i++) {             tx.begin();             user.update(timestamp);             pm.makePersistent(user);                                    <--- second makePersistent() call             try {                 pm.currentTransaction().commit();                 break;             } catch (JDOCanRetryException ex) {                 if (i == (txDatastoreNumRetries - 1)) {                     logger.severe("DatastoreTransactionException: Trying to update the same user calls stats concurrently. " +                             "No more retries left. Update aborted. User: " + user.getUserId());                     break;                 }             }         }         if(tx.isActive()) {             tx.rollback();         }         pm.close();        ----------------------------- Wasn't the makePersistent method call needed just at object creation...?? Is this a GAE SDK problem ??? Thanks --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en -~----------~----~----~----~------~----~------~--~---